Automatic stop-motion for knitting-machines.



' PATENTBD JUNE`9.-1908'.

` R.. PILTZ 'au A. LAKE.A AUTO-Mmm STOP. MOTION-POR KNITTING MACHINES.

APPLIouxol'r Hum 'MAY is. 1901.

.asuma-SHEET i.

.f4.- l Arm l ml. u

' l v linvenfon PATENTED JUNE 9, 1908.

R. PILTZ l: AAQ LAKE; AUTOMAIIGQSTOP MOTION lFOR KNITTING, MACHINES.

APPLICATION FILED MAY-Z3, 1907.

6 SHEETS-SHEET 2:

Attorneys Witnesses:

No. 890,038.- P ATENTED JUNE 9, 1908.

` i R..PIL1`TZ& A. LAKE.- vAUTMATIG STUP MTION FR KNITTING MACHINES.

` UEMOA-T1011' Hmm MAY'zsfl'aov.

s SHEETS-$113111* a.

may@

i Inventor,

Attorneys PATENTBD JUNE-9i 1903` A'. kPIL-TZ O TA. LAKE. AOTOMATIO STOP MOTION POR KNITTI'NG M AOHINBS.

AP-PLIO'ATION FILBOMAY 223. 19o?. l

s sums-EMMA.

Inventor,

Attorneys Witnesses=- v PATBNTED JUNE 9, 1908.

R. PILTZ & A. LAKE. AUTOMATIC STOP MOTION 'FOR KNITTING MACHINES.

APPLICATION FILED MAY 23, 1907.

6 SHEETS-SHEET 5'.

Attorneys No. 090,039. l v f PATENTED JUNE 9, 1909.

' R. PILTZ 0 A. LAKE.

6 SHEETS-SHEET 6.

\ Witnesses: i lnvent'or,

M I. By' l v Il Attorneysl D STATES PATENTI orrionm RICHAR ILTZ ND ALFREi) or KINGS-Torr, ONTARIO, eANzAiify AU'roMA'rrc STOP-MOTION Fon KNrr'rine-MACHim;s,A A

'fr iroxsecpae.

To all 'whom it mai/ concern:-

ALFRED LAKE, subjects ofthe King of Great Britain, residing, atthe city .of Kingston, county of Frontenac, 'in the Brovin'ce ofOntario, Canada, .ha'vje invented certain new and useful lin roveinents in Automatic Sto Motions for` achines'; and .We d) -hereby declare thatv following is a. full,

of `the invention,

rs `skilled in the l art such ,as will l enablel (itl)K to which it appertains malte'and usethe' same.A

This invention machines,

and its object is. to providea new and improved stop motion, which'is simple and durable'in construction, veryelicient 'and auf tomatic in operation; specifically de-` signed to prevent lage'fllfnots,y imperfectly twistedyarn and bunches o'f loose material on the bobbins'ron passing into ythe knitting machine, thus overload-ing or choking up the the claims.

needlesand causing breakage of .the latter, The invention further-operates to stop the machine in case of breakage Vofthe yarn, or

through the end ofthe yarrlon the bobbin' having been' reached. f

The invention consists, in the novell features'of construction and relative arrange-AY ment Vof parts hereinafter fully described in the specification, clearly illustrated 1n the drawings, and particularly pointed out in vReferring to the accompanying-drawings, forming 'a part of this application, and 1n whichfsimilar reference characters designate corresponding parts wherever they occur:v Figure 1 isa view in elevation of one end of` the knitting machine, showing the improvement applied thereto; Fig. 2 is a plan view of` f bthe same; Fig; 3 is a detail ofthe belt Ashipvper taken'on the line 3-3 of Fig. 1-; Fig. 4 is anenlarged side elevation'of the trippingl '."4, showing, the stop motion' slide asset for f operation; Fig. 7 is a similar section showmg mechanism; Fig. 5 is la front view of the same; Fig. 6 is asection online 66 of Fig.

`positir'in ofthe parts after4 having been to stop the machine; Fig. 8 is a section-Online 88 of'Figff; FigQ is a detail insectionpFig. 10 is a bottom View of Fig', 4i Fig``1fl is a side view' of the waste strip per, showing. by dotted lines the position 'l ofthe automatic brake mechanism; vF `1s a section of` the same on line l'l-l 7,.

`suitab e source is Patentedv'uiie i9, v19081K, if

tions between the sectionsfof the stop slide;l Fig. 13 iswan operating pin des be connected to the stop motion s 14 is a erspective view of the-stop i shaft; '15 is a erspective offra necting bracket; Flig. 16`is a'i'sideele'vftiion 16 and, Fig. 18 is aview 'of brake releasing mechanism.y n Y The improved automatic stop ngis applied to a knitting machineofthej rdinary or any preferred construction f' find tio frame A, needle head B, needles Gand thread feedin mechanism D. Power .from "any v a plied to the' mainjhshaft E by means of the d)r'ive pulley Anank-` ilia .shaft H drives the rotatin "niechan" ism y the .beveled gears K. Ont iefsli'aftf' H is' arranged al fast pulley land a loosel J, driven by 'a belt G passin over anu eyfN from the bobbin L through t e improved" stop device to the feed inechanisrnj).y o

Surrounding the bed-or traine A, suitably supported in brackets, is the sto, i' 'motion slide 1, designed when shifted'laterally by. the hereinafter described means, to ship the belt from the fast to the'loose pulley, andsiniiiltaneousl trip the brake mechanism to stop .the macviine.

This slide lconsistsjof atnarrowl bar of suitable material extending along each' side of the main bed or frame, ratndvpro#f vided with suitable corner brackets 2, whereby lateral sliding motion `pf `one section will be.l communicated to the other sections. These brackets `comprise. ins .3, mounted in the bracket frame, and s otted" links vfllsnit# ably held in any adjusted position on..,the

pins 3. Connected with slides 1,: adjacent the brackets 2, are the adjustable brackets 5,

with. depending pins 6 engaging the links 4,., Lateral movement is given to, the slide assumed when operating to stop um, fl chine Fig. 12 isa detailed `view oftheconn'ec- .'illustrated, it may comprise thebedoi `ontheshat E. The threa or aria' M isled .y

structed as4 follows., lSuita-bly supported v n IQ5 ing a depending lug 10,V guided betwdn .ai paar of guide rods il secured inthe arms 8;'

Below these guide rods, a rod 12,' carrying a sliding c lar 13l having an upwardly extending lug 4, is secured between the arms 8. This col ar is normally 'wing-pressed to one end of t/he rodby means of the spiral sprincr su 'rounding the rod, the collar an( ending ug 1f) being of such dimeniat when the frame is n roved by the sprin it presses thelurfl 1Q, and consequently t On the forward e s de 1 also, to ons` side. l side f the collar is a lug 16, beveled on one side,land when the releasing mechanism is osition to engage l s ind e is a circular block 23, carrying the.

Y bent arm 25 on this lever isso arranged as to in t set'position, asin Fig. 6, this lug is en'- aged by a Weighted trigger 17, holding the evi e 1n the set position, i. e., with the sprl g 15 under compression.

on the frame 7. he weighted` end o Xtending forwardly from theA ln'pturned arin 20, by ineans o which the trigger is tripped.

ecured in the frame 7,7in proximityT to the arm 20 of the trig er, is the vertical spindle 21, on which sli es the flanged releasing weight 22, adapted when dropped, as shownv in dotted lines, Fig. 4,l to contact the arm 2O to tri the trigger. At the upper end of the epending lever A24, pivoted thereto. A

Y take under the fiange of the weight and hold the same elevated (see Fig. 4).

-tending thread-engaging arms 33, arraf.`

The arrangement is suchthat when thethread wire is released from its full line position, Fig. 4, to the dotted line position, the lever arm 2 4 is moved, thereby releasing the -Weight 22.

V An u Wardly extending spindle 31, secured .in the' aine 7, supports at its upper end the adjustable blocks 3?, carrying laterally exwith relation to the arm 29, one above and the'- other below. The spindle 31 also carries prises a Ytwisted portions from passin i.

a platform 34, on which is supported the Waste stripper 35'. This Waste stripper comair of parallel bars, 36, provided with teet on their adjacent edges, and arranged apart a proper distance to allow the thread or yarn to pass freely therebetween, but to prevent tangles, knots, Ior loosely 1 These bars are supp. "ed by' means of a e ending yoke `37,"pi,v0ted in the rotating b ook 38, supported in the plate 34. f39iis a spring 'tending- The trigger is7 pivoited. between u wardly extending lu sA 18 Ir)l the'A4 trigger normally holdslf'it inxtthe position* s'hqwn infFig. 9, with the lug` 19 thereof in" the lug 16 on the collar. ivot is the vupper end of king the spring, the notch 'engagin normally to-rotate the bars 36 to lposition parallel to th thread-'engaging arms ".29 and 33. A lug 40` on the platform 34 niiirmally prevents such rotation by engaging with the depending arm of the yoke 37, the yoke being, however, adapted, when moved yabout its ivot, to clear the said lug. 4 Below the lat-- orm 4 'on the spindle 31, is secure the thread eye 40.

The' threador yarn M is led from thebobbinL through the guide eye 40 between the bars of the Waste-stri l 33, is looped aroun the-farm 29, and then' asses under the upper arm 33 to the `needle, y 1t 'being'l understood that the mechanism,4 above described is duplicated for each bobbin and thread.

i In any convenient-position on the bed A, is arranged a bracket 41, supporting the upright sto motion shaft 42, providedat itsl lower en with the slotted arm 43. Adjustc ably secured onthe stop'motion slide 1, in a convenient osition,.is the upwardly extending pin 44 FE ig. 1 3) arranged to engage the slot in the arm 43-to rock thesh'aft 42 when the slide is laterally displaced. Secured to the upper end of the shaft 42, and at a right angle to the arm 43, is an arm 45, at theend per, over the lower arm of which is pivoted a laterally swinging arrn l 46, slottedat its outer en d. In a vertical bearing rneniber 47, secured to a stationary portion of the machine, is'a rock shaft 48, the

whiohis connected by suitable v links and levers to the slotted arm 46 to be rocked thereby. The lowerendof the rock shaft carries a brake releasing pin 49, adapted, when the shaft isrocked, to release the long end of a bell lever 5l), pivoted at 51 to a stationary portion of the mechanism. By means of the strong spring 52 acting through a series of levers 53 on the short arm 54 of `the bell lever, Vthe long arm `is, as soon-as rele sedby the pin, pressed upwardly; engaging and elevating the arm 55 on the brake. The brake consists of a suitably sup orted horizontal cylindrical casting 56, in w ich is mounted to slide the brake piston 57, provided Within the casting at onf,` and with the collar 158. A strongspring 59 surrounds the piston, bearing at one. end against the collar and jat the other end Vagainst the removable plug 60, closing the end of the cylinder. The rear end of the piston carries a handle 61, and the forward end is rovided with a4 `brakeshoe 62, provided witfi a thick rubber facing 63, suitably secured to the shoe, as shown in Fig. 17. Pivoted to the brake` shoe is the arni 64, provided with the notch-65 in its under side, and carrying.the arm previously referred to. The lug66 is provided on the cylinder sup ort, so that when the piston is pulled backby tlie handle compresse the lug 66 will hold4 the )arts in set posit-ion. When forced forward, the brakel shoe is mit 'ted to bear @ntfs f disk supperting @the jn'e'e le heads; -A belt ship ing'meehamsmis also provided, constructe "as follows; Suitably journaled astatonIy' O'rtion-of the mechanism, and in'theinaih ed or frame,

l and extending belowlthe same in proximitfy to the "G, artatable rod 67, provided at its"lojvfer fend with a'jbentmarml'S', arranged" toA e age the' belt'fGand' tojship the one side undepthein ofthe-@plaag 152,

fhe knitting. rn'fecieds'y uhinter'rupadly-slong as the threadw'ire isy heldin thefull linepositionshown idF ig. 4.'4 vShouldjthe thread be broken vor be entirelyf'unwound from the bobbin, the wire: will be released, as-` .lsurning the dotted line po'sltion'showninfsaid figure. "The lsanfe resu'ltfis "accomplished whenever knots, tangles; 'or 'flaws in the-yarn reach the waste@"stripper,'y whereup'on'- the stripper is pulled;upwardjrocliing the yoke 37 so as to clearthepini, andthereby'permitting the spring? 39:' to :rotate thev stripper sowasy torelease the yarn from the arms 33of `the arm 29.V The dropping offthefthread v wire 28 tilts the lever'24 through the )Contact of thearms 27 and 26,'thus releasingthe weight 22, which immediately dropson tothe u wardly extendingfarnif2() of. fthe trigger, tlus tilting the same s o as Yto release the eollar lfand allow it, together'withl the slide 1, to be shifted laterallyby'nieans of the spring 15. This lateral movement acting through theshaft 42 and its connections, rocks the shaft 48, thus .releasing the-"bell lever ajrm'51 and allowing it` tobe throwri'npwardunder the influence of thespring 52` I The a'r'm 51, through contactI wthwthe arfm""5'5,` on `thel d f brake, releases thenoteh' from its engage- 4spring 59 to act ftoj'set the rake. Simultaneously with this 'ation,""'the' lever y69 is shifted, and through the shaft 67 and armB,

,the ybelt is shipped tb" the lppse pulley.' f

Itvwill thus eseenfthat positively acting device is obtained, 4,whieh Vis entirely vautomatie in action",` and whieh-will fdetectaiiy l i "foo laW in time toprevent damage td'the mate? ,rial knittedor 'to thel'machine. -V A'In additien Lto the` great saving l vplduct ,and in' Vtljie,y @reverse the Y tirely 4autornatifc 'it V ,.attendto" a2 number* "ina '65 i' thread wire, and devices i controlled'b a verticallyr sliding .weightfinsgproximitym to said' trigger, `a "lever having fan arm: engaging :said-weight and`l holding the sameiilzit; I'Sl position, ,a'fpivoted ,thread-,wire held fpos'itionl'byythe ,knitting thread,;1arm on said 'wire arranged when said wire isrelen/sed ito' contact said weightsup ortingllevert re Alease-s'aid weight where ysaidf'x trigge fis A tripped, vandfde'viees controlled'bysaid; de forstopping the knitting machine( 1 2Q In a stop motion for knittingifmaohmes, a l'aterall movable slide, a spring fonopeij- 'ating'sai slide, a pivotedv-tr-igger andmeans Aeoper'ating therewith for holdinglsaid spring compressed in position to 'operate.,saidfshde, va'pivoted"thread Wire held l1n raiseda osiiQh vby the knitting thread, connections` etyveep saidwvirev and said trigger wherebyfwhellisaid wire is released said trigger is tripped n waste stripper through which' Said-,x "passes, means for rotating said strippe when pressure is applied thereto` whereby said thread is released from said threadwire, vand 'devices controlled by said slide.for,lstopping4 the knitting machine.. f:y .f f U1-05 8L In a stop motion for knitting,

- .a.,.; .,J a laterally movable slide, a spring-foroperating said slide, a pivoted'tri ger', andrneans Veoperatingtherewithfor ho ding saidspring compressed in position to operate said slide, a 'vertically sliding weight in 1 ,proximityv gto said trigger,I a lever havlng an arm engaging said'weight and holding the same insite vraised position, a pivoted-fthread VWirealield irl-raised position by the knitting-1thread,-ian; y,arm von said wire arranged when said wirelis released to contact saidweight supporting lever to release said Weight whereby said trig-l ger'istripped, a Waste stripper. threughwhiph -saidthread-passes, means for"rotating-said20 stripper when pressure isv appl-iedatheretp, I'whereby f'sai'd'thread is released vflIQIIsaid aid lideffor stepping the knitting-:machin A 4;'1Inl ablst'op-rnotionforknitting ma irreali; 25

combination with a beltlshipper andra rake, apivote'd thread wire contro ,i le aine heldin raised position.- by'a the.; tting hre'ad, land ja waste` strippertthroughtyvh r 'aidwthreajdrpasses1 land means; .rptat l said stripper when pressure is applied thereto,

wire'. l 5. In a stop whereby said thread' is released from said motion for knitt'` brake,- a 4piyoted ythread wire controlling the "same hel 1n raised osit'ion by the knitting thread, and a rockab stripper throilxgh which said thread passes, a spring norma .to rotate said strip-- ytei j per, andme'ans preventmg siich rotation but the knitt' arranged when pressure'isf stripper to permit rotation thereof, whereby A L thread is .released mentwlth t e thread wire. A.

' a laterally .movable slide, a'spring for operatvertically sliding` 4-we htrand hold "posllgtio'n, a pivoteldi ing'fsaidl slide, fa pivotedv tri er, and-means coperatin therewithfor ho 'ng said spring compresse in position l to operate said slide, a weight in proximity to said aving an arm engaging said er, alever the same', 1nr its raised "',meanspreventmg such rotation arranged thread is tl're. thread Wire,

`when pressure is applied to said stripper to permit-rotation thereof whereby the knitreleased from engagement with said slide for stopping the knitting schine.

7; Ina stop motion ,a laterally' ating sai '-:compressed ate re easing means compressed in posislj for knitting machines, movable slide, a spring for operslide, a pivoted trigger and means therewith for holding said spring in position to operate 'said slide, a-suspended weight above saidtrigger, means controlled by the knitting thread for releassaid weight whereby said trigger is trip ed aspring operated rake, spring oper" for said brakefaiek shaft controlling said releasing means and connections to said slide whereby when said slide is moved said Vbrake is allowed to set, and a belt shipper connected to lsaid releasing means and operated thereby;

i8. In a stop motion for knitting machines, a laterallyr ating sai cooperating cooperating slide, a pivotd trigger and means therewith for holding said spring v`-n to operate said slide, a' suspended weight aboveA said trigger, a

ivoted thread wire held inv raised position Ey the knitting thread, connections etween `said wire" and .the weight for releasing said breaka weight when the wire is released through e or exhaustion of the thread wheretrigger is tripped, a spring-operated brake, sprmgoperatedreleas1ng means for l machines, -mcombmatlon with a belt shipper and a le and rotatable'waste applied .to saidfromengage- I "'61 -In afstop motion for knitting machines,

l hread wire held in raisedyposition by the knitting thread, an arm Von and devices contre-ted by movable slide, ya spring for opern scopesy said brake, a rock shaft controlling said revwherebyv when said slide is moved said brake is allowed to set, andV a' belt shi per connected to said releasing meansl an operated thereby..

9,- In a stop motion for knitting machines, 'a laterall movable slide a springforoperfatingv sai slide, a pivoted trigger and means fcbperatin therewith for holding said spring applied thereto whereby erated, thereby. I l l0. In a sto lchimes, a lateralfy operating said side, apivoted trigger and means cooperating ltherewith for holding said spring compressed in position to operate said slide, a suspended weight above said trigger, means controlled by the knitting thread forl releasing trigger is tripped, -said slide, a spring-operated lever, a1,

motion for knitting magnYa secsaid second rock sha. t, conper lioperated by fast-mentioned rock nections between said by when said shaft rocked said lever is releasedto .'operated, and a s ring-operated leasing means andconnect-ions to said slide from said controlling l shaft and said spring-'operated lever, where- .75 compresse in position tooperate' said slide,

means for rotatin'gsaid stripconnected to'said releasing means and opl movable slide, a spring for said weight whereby said y a a rock shaft operatedbjy ondrock shaftl operated thereby,a by shipv vvbrake also controlled by said st-mentioned rock Shaft.

In a sto motion for knitting ma- -fohines lateral y movable slide, a spring for operating-said slide, a pivoted' trigger and means cooperating therewith for holding said spring compressed in position to operatel said slide, asus ended weight above said trigger, a pivote thread wire held in rai-eed )osition etween said Wire and the weight for releasing said' Weight when the wire is released through breakage or exhaustion ofthe thread whereby said trigger is tripped, a rock shaft operated by said slide,4 a spring-operated lever, and a second rock shaft operated thereby', a belt shipper 'operated by said second rocl'; haft, connections betweez'i said firstmentioned rock shaft and said spring-operated lever, whereby when said' shaft is rocked said lever is released to be operated, and a spring-operated brake also controlled by said first-mentioned rock shaft.

12; In a stop `motion for. knitting inaby the knitting' thread, connec'tions hjnes, @laterali movable slide, afp'ngfr operating said side, a pivoted tri means coperating therewith for ho spring compressed in positionto operate said de, a vertically sliding weight in 'proximity to said trigger, a lever having an arm engag-l ing said weight and holding the saine in its raised position, a pivoted thread wire held in v raised position by the knitting thread, an

, ger is tri ed which saidpiread passes, ineens for rotating to, where arm on said wire arranged-when said wire is released to contact said 'weight supporting lever to release said weight whereby said triga waste vstripper through said stripper When-pressure is applied there# y said thread isreleased from said thread wire, a; rock shaft operated by said slide, a s ring-operated lever, 'and a second rock-sha t operated thereby, a belt shipper operated by said *second rock shaft, connes-- tions between said first-mentioned rock shaft and said s ring-.operated lever, kwhereby ywhen said s aft is rocked said lever is released to be operated, and as ring-operated brake also controlled by said st-mentioned rock shaft.

Inwitness whereof Wel have hereunto set our hands 1n the presence of twoiwltnesses.

RICHARD FILTZ.V LAKE." Vitnesses: f

" GEORGE O. WARD, j FRANCIS' DUFFY. 

